Buggy code:
public class ChartOfAccounts { static ChartOfAccounts singletonInstance ; private static final Logger LOGGER = Logger . getLogger ( ChartOfAccounts . class ) ; private static final String ROOTNODE = "//COA" ; private static final String GLACCCODENODE = "GlAccountCodes" ; private static final String GLACCIDNODE = "GlAccountIds" ; private static final String ACCOUNTDETAILTYPENODE = "AccountDetailType" ; private static final String EXP = "Exp=" ; private static final String EXILRPERROR = "exilRPError" ; private static PersistenceService < CChartOfAccountDetail , Integer > chartOfAccountDetailService ; private PersistenceService < CVoucherHeader , Long > voucherHeaderPersitService ; private List < Object [ ] > resultset ; private static Cache < Object , Object > cache ; @ Autowired private BudgetDetailsHibernateDAO budgetDetailsDAO ; public ChartOfAccounts ( ) { } public static ChartOfAccounts getInstance ( ) throws TaskFailedException { } public void reLoadAccountData ( ) throws TaskFailedException { } static void loadAccountData ( ) throws TaskFailedException { } private static synchronized void loadParameters ( HashMap glAccountCodes , HashMap glAccountIds ) throws TaskFailedException { } private static Integer getIntegerValue ( Object [ ] element ) { } private static Long getLongValue ( Object [ ] element ) { } private static GLAccount getGlAccCode ( CChartOfAccounts glCodeId , Map glAccountCodes ) { } private static GLAccount getGlAccId ( CChartOfAccounts glCodeId , Map glAccountIds ) { for ( Object key : glAccountIds . keySet ( ) ) { <START_BUG> if ( ( ( String ) ( key ) ) . equalsIgnoreCase ( glCodeId . getId ( ) . toString ( ) ) ) <END_BUG> return ( ( GLAccount ) ( glAccountIds . get ( key ) ) ) ; } return null ; } private boolean validateGLCode ( Transaxtion txn , DataCollection dc ) throws TaskFailedException { } public boolean validateGLCode ( Transaxtion txn ) throws Exception { } private int getClassificationForCode ( String glcode ) throws TaskFailedException { } private boolean isRequiredPresent ( Transaxtion txn , GLAccount glAcc , DataCollection dc ) throws TaskFailedException { } private boolean isRequiredPresent ( Transaxtion txn , GLAccount glAcc ) throws Exception { } private boolean validateTxns ( Transaxtion [ ] txnList , DataCollection dc ) throws TaskFailedException { } private boolean validateTxns ( Transaxtion [ ] txnList ) throws Exception { } public boolean postTransaxtions ( Transaxtion [ ] txnList , DataCollection dc ) throws TaskFailedException , Exception , SQLException , ParseException , EGOVException , ValidationException { } public void setBudgetDetailsDAO ( ) { } public void setScriptService ( ) { } private boolean checkBudget ( Transaxtion [ ] txnList ) throws Exception , ValidationException { } @ Transactional public boolean postTransaxtions ( Transaxtion [ ] txnList , String vDate ) throws Exception , ValidationException { } private void checkfuctreqd ( String glcode , String fuctid , DataCollection dc ) throws Exception { } private boolean checkfuctreqd ( String glcode ) { } private boolean postInGL ( Transaxtion [ ] txnList , DataCollection dc ) throws ParseException { } private boolean postInGL ( Transaxtion [ ] txnList ) throws Exception { } private boolean updateInGL ( Transaxtion [ ] txnList , DataCollection dc ) throws TaskFailedException , SQLException , ParseException { } public String getGLCode ( String detailName , String detailKey , Connection con ) throws TaskFailedException { } public String getFiscalYearID ( String voucherDate , Connection con , DataCollection dc ) { } private boolean validPeriod ( String vDate ) throws TaskFailedException { } public void test ( ) throws TaskFailedException { } public static HashMap getAccountDetailType ( ) { } public static HashMap getGlAccountCodes ( ) { } public static HashMap getGlAccountIds ( ) { } private boolean validRecoveryGlcode ( String glcodeId ) throws TaskFailedException { } public void setCacheInstance ( Cache < Object , Object > cacheInstance ) { } public PersistenceService < CVoucherHeader , Long > getVoucherHeaderPersitService ( ) { } public void setVoucherHeaderPersitService ( PersistenceService < CVoucherHeader , Long > voucherHeaderPersitService ) { } public static PersistenceService < CChartOfAccountDetail , Integer > getChartOfAccountDetailService ( ) { } public static void setChartOfAccountDetailService ( PersistenceService < CChartOfAccountDetail , Integer > chartOfAccountDetailService ) { } public BudgetDetailsHibernateDAO getBudgetDetailsDAO ( ) { } public void setBudgetDetailsDAO ( BudgetDetailsHibernateDAO budgetDetailsDAO ) { } }

Fix:
if ( ( ( String ) ( key . toString ( ) ) ) . equalsIgnoreCase ( glCodeId . getId ( ) . toString ( ) ) )